<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        *{
            margin: 0;
            padding: 0;
        }
        header{
            width: 100%;
            height: 60px;
            background-color: red;
        }
        article{
            width: 500px;
            height: 200px;
            background-color: rgb(79, 28, 129);
        }
        aside{
            width: 500px;
            height: 200px;
            background-color: aqua;
        }
        .con{
            display: flex;
            /* justify-content: space-between; */
        }
        footer{
            width: 500px;
            height: 400px;
            background-color: blueviolet;
        }
    </style>
</head>
<body>
    <header>头部</header>
    <div class="con">
    <!-- 文章区域 -->
     <article>
        文章部分
        <section>部分</section>
     </article>
     <aside>
        侧栏
     </aside>
     </div>
     <!-- 底部 -->
     <footer>底部</footer>

     <!-- 进度条 -->
      <progress max="100" value="50"></progress>

      <input type="text" list="sel">
      <datalist id="sel">
        <option value="猪八戒">222</option>
        <option value="孙悟空">333</option>
      </datalist>

      <!-- 嵌入 -->
       <embed src="1.txt" type="">
</body>
</html>